/*
 * Copyright (c) 2007 Sun Microsystems, Inc.  All Rights Reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Sun designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Sun in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
 * CA 95054 USA or visit www.sun.com if you need additional information or
 * have any questions.
 */

package sun.net.httpserver;

import java.io.*;
import java.net.*;
import com.sun.net.httpserver.*;
import com.sun.net.httpserver.spi.*;

/**
 * a class which allows the caller to write an indefinite
 * number of bytes to an underlying stream , but without using 
 * chunked encoding. Used for http/1.0 clients only
 * The underlying connection needs to be closed afterwards.
 */

class UndefLengthOutputStream extends FilterOutputStream 
{
    private boolean closed = false;
    ExchangeImpl t;

    UndefLengthOutputStream (ExchangeImpl t, OutputStream src) {
	super (src);
	this.t = t;
    }

    public void write (int b) throws IOException {
	if (closed) {
	    throw new IOException ("stream closed");
	}
	out.write(b);
    }

    public void write (byte[]b, int off, int len) throws IOException {
	if (closed) {
	    throw new IOException ("stream closed");
	}
	out.write(b, off, len);
    }

    public void close () throws IOException {
	if (closed) {
	    return;
	}
	closed = true;
	flush();
	LeftOverInputStream is = t.getOriginalInputStream();
	if (!is.isClosed()) {
	    try {
		is.close();
	    } catch (IOException e) {}
	}
	WriteFinishedEvent e = new WriteFinishedEvent (t);
	t.getHttpContext().getServerImpl().addEvent (e);
    }

    // flush is a pass-through
}
